Dust bag for suction cleaning apparatus



' April 8, 1930.

o. c. WILLIS DUST BAG FOR SUCTION CLEANING APPARATUS Filed Aug. 8', 1924 2 Sheets-Sheet 1 April 8, 1930.

o. c. wlLLl s DUST BAG FOR SUCTION CLEANING APPARATUS Filed Aug. 8, 1924- 2 Sheets-Sheet 2 Patented Apr. 8, 1930 UNITED sTATEs PATENT OFFICE OLOG. WILLIS, OF CLEVELAND, OHIO, ASSIGNOR TO THE IR. A. GEIEB COMPANY, OI

cLEvEL Nn, 01110, A comonn'rron or one nus'r BAG non sucrron CLEANING ArrAnATUs Application filed August 8, 1924, Serial No. 730,887 and in Canada August 81, 19 88.

to the portable type of electrically actuated suction cleaner, comprising its principal adaptation. In this class of suction cleaners, the dust bag almost universally is attached at its-lower end to the outlet from the electric fan and is maintained in an inclined position by connecting it from its upper end to the handle of the suction cleaner, Naturally, the dust and dbris collected by said suction cleaner, normally accumulates in the lower portion of the dust bag and common practice alfords different modes of removing the collected dirt from the lower end of the bag, al-

though this by no means isfollowed universally.

Owing to the diverse character of the dirt and litter collected by a suction cleaner, vary ing from the lightest dust to fibrous material and small metallic objects, there is presented something of a problem in freeing the average dust bag of its contents without getting the dirt u on the person or about the room.

This disa vantage is especially manifest with respect to dust bags having their discharge openings at or near'their lower ends, and I have further observed that a dust bag afiording a constricted portion adjacent to the discharge opening or any obstruction by .way of scams or pouch-like. sections is much more difficult to clearof its contents.

Thus the sanitary emptying of a dust receptacle, particularly as aportion vof its contents is likely to cling to the sides of the bag, in'addition to lodging against and within protruding edges of seams and the like, involves the most careful design and construc: tion of the container. Accordingly,-I have sought to improue u on the dust receptacles of the prior art by a ording a readily closed and opened mouth at its upper end and shaping the dust bag so that itsopen month shall present substantially its greatest opening to- BElSSUE-D ward which the sides ofthe fabric container outwardly taper.

Moreover, I have obviated the difiiculty present in all prior'dust bags of this class with which I am acquainted, presented by their tendency to collapse at or about the mouth thereof. For this purpose I have provided a rectangular hinged metallic frame that is adapted to collapse along two opposite sides when the bag is closed and permit a clip to be applied over'the members of said frame and the enclosing edges of the dust bag. This frame normally will remain open for the purpose of discharging the dirt, thereence to the accompanying drawings, wherein:

Figure 1, is a perspective view of a 'suctioncleaning appliance equipped with my present improvements. I 7

Fig. 2, is a fragmentary'view, upon an enlarged scale, of the upper end of the dust bag held within its seahng clip.

Fig. 3,- is a longitudinal section thereof 1 on line 3-3,-Fig. 2.

Fig. 4, is a transverse section on line 44, Fig. 2.

Fig. 5, is a perspective view of the hinged metallic frame.

Fig. 6, is a fragmentary perspective view of the1 upper end of the bag partially opened, an I i Fig. 7, is'a upon a-slight plan view of the to of the'bag y reduced scale, s owing the mouth thereof as held open by the frame.

' Throughout the several figures of the drawings, I have employed the same character of reference to indicate similar parts.

Referringfirst to Figure 1, a desi ates the-fan chamber of a portable electric suction cleanerrb the dust bag or fabric rece tacle for the debris herefrom and at e mouth of the bag as shown in Fig. 7. These isap lie dustasa per end of the dust bag arewell illustrate on Sheet 2, of the drawings wherein the spring clip (1 is shown. .firmly grasping the walls of the bag below its mouth to revent the escape of the dust laden air, while affording suflicient' space throughout its body for accommodating the frame stitched within the mouth of the bag.

This frame is best shown in Fig. 5 and comprises two side sections e, between which are inged the collapsible end sections, 0', e", which form the stays for the fully open members are stitched within a hem of the fabric which completely encloses the frame and takes its shape therefrom.

It will be appreciated that the dust bag, normally sealed below the level of the frame,

may readily be opened at its mouth merely by sliding the clip laterally from its sealing ppfition and throwing the members of the me e, e", into their expanded parallel relation. This forms a square opening for the mouth of the dust bag which is capable of collapsing for the purpose of efiectlng a seal along the relatively short length of the square opening.

Referring to the broken-away lportion of the dust bag, Fig. 1, it will be seen t at a tubular member 6 of fabric forming a sleevelike trap, is provided at the inlet of the dust bag to afford an automatic seal for the exit of dust and debris at this point. This sleeve will colla se normally unless the air pressure to drive the dust-laden currents into e bag, as will be readily understood.

In order to em ty the bag of its contents when the mouthv as been opened, as shown in Fig. 7 a newspaper may be laid upon the ground or floor and the expanded mouth of the preferred embodiment of my invention, I claim as new and desire to secure by Letters Patent, together with such modifications as may be made therein by mere skill, the fol- 2. Closure means for dust receptacles and the like, comprising a frame formed from hinged collapsible members folding within the compass of two opposing principal members of said frame, fabric engaging faces rovided for the collapsible members of the frame, and means for sealing the frame members in a proximately air tight relation when the mem ers are in their collapsed relation.

In testimony whereof I do now aflix my signature.

'OLO C. WILLIS.

the dust bag as retained p? its frame is a er pressed thereon. The sm end of the ust bag is then elevated, either by lifting the attached suction cleaner, if desired, or by detaching the locking lugs b" and removing the smaller end of said dust bag fromthe' suction cleaner, whereupon the bulk of the dust will fall upon the paper and by Y lightly tapping the sides of the bag, such and also fall upon the paper, to be readily disposed of in any suitable way.

It will be appreciated that this form of dust receptacle afiords no lodgment for the dirt; itswidely opened mouth being the Having now described with some amaleres thereto will be disengaged largest portion of the bag in its discharge position, which mouth may be closely pressed down upon the paper or other discharge sur- 

